I took a stock ER4 (fw 2.0.8), followed this guide, performed steps 1 to 7 & 9, Configured the L2TP Server
When I try to connect from F31 VPN client, I get an error "Disconnected. VPN service failed to start"
I've done this plenty of times with other ER-4's & they just work, the only difference being those ER-4's also have S2S VPN's.
What step am I missing?